<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <table width="800" border="1">
        <tr>
            <td rowspan="4">1</td>
        <td>2</td>
        <td colspan="2">3</td>
        <td>4</td>
        <td colspan="2">5</td>
        <td rowspan="2">6</td>
        <td rowspan="2">7</td></tr>
        <tr>
            <td>8</td>
        <td colspan="2">9</td>
        <td>10</td>
        <td colspan="2">11</td></tr>
        <tr>
            <td>12</td>
        <td colspan="2">13</td>
        <td>14</td>
        <td colspan="2">15</td>
        <td>17</td>
        <td>18</td></tr>
        <tr>
            <td >19</td>
            <td colspan="2">20</td>
            <td>21</td>
            <td colspan="4">22</td>
        </tr>

    </table>
    
</body>
</html>